220203101 has 4 divisors (see below), whose sum is σ = 220466400. Its totient is φ = 219939804.

The previous prime is 220203079. The next prime is 220203133. The reversal of 220203101 is 101302022.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 101302022 = 2 ⋅50651011.

It is a cyclic number.

It is not a de Polignac number, because 220203101 - 2¹⁴ = 220186717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220203001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130391 + ... + 132068.

It is an arithmetic number, because the mean of its divisors is an integer number (55116600).

Almost surely, 2^220203101 is an apocalyptic number.

It is an amenable number.

220203101 is a deficient number, since it is larger than the sum of its proper divisors (263299).

220203101 is an equidigital number, since it uses as much as digits as its factorization.

220203101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263298.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 220203101 is about 14839.2419280771. The cubic root of 220203101 is about 603.8667865873.

Adding to 220203101 its reverse (101302022), we get a palindrome (321505123).

The spelling of 220203101 in words is "two hundred twenty million, two hundred three thousand, one hundred one".